366
FNCA52 TJSJ 130730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST WED MAY 13 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-132000-
SOUTHEAST COASTAL PLAINS-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 70 50
TEMP (24H TREND) 89 (+2) 72 (-2) 89
RH % (24H TREND) 52 (-4) 92 (+5) 54
WIND 20FT/EARLY(MPH) E 16 E 11 E 16
WIND 20FT/LATE(MPH) SE 14 E 12 SE 16
MIXING HGT(FT-AGL/MSL)4890 4710
TRANSPORT WND (MPH) SE 17 SE 17
VENT RATE (KT-FT) 73350 70650
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-132000-
SOUTHERN HILLS-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 70 40
TEMP (24H TREND) 86 (+3) 69 (-2) 86
RH % (24H TREND) 61 (-6) 97 (+4) 63
WIND 20FT/EARLY(MPH) E 13 E 11 SE 13
WIND 20FT/LATE(MPH) SE 13 E 13 SE 12
MIXING HGT(FT-AGL/MSL)5950 5620
TRANSPORT WND (MPH) SE 17 SE 17
VENT RATE (KT-FT) 89250 84300
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-132000-
NORTH COASTAL PLAINS-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 40
TEMP (24H TREND) 91 (+3) 72 (-1) 91
RH % (24H TREND) 55 (-8) 95 (+2) 56
WIND 20FT/EARLY(MPH) E 13 SE 11 SE 14
WIND 20FT/LATE(MPH) E 17 SE 11 E 16
MIXING HGT(FT-AGL/MSL)6210 6300
TRANSPORT WND (MPH) SE 15 SE 15
VENT RATE (KT-FT) 80730 81900
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-132000-
NORTHERN HILLS-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 60
TEMP (24H TREND) 90 (+3) 70 (-1) 91
RH % (24H TREND) 56 (-7) 96 (+2) 57
WIND 20FT/EARLY(MPH) SE 11 SE 10 SE 12
WIND 20FT/LATE(MPH) SE 14 SE 5 SE 14
MIXING HGT(FT-AGL/MSL)6830 6510
TRANSPORT WND (MPH) SE 14 SE 14
VENT RATE (KT-FT) 81960 78120
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-132000-
WEST COAST-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 10 40
TEMP (24H TREND) 91 (+2) 73 (0) 91
RH % (24H TREND) 57 (-5) 95 (+3) 59
WIND 20FT/EARLY(MPH) SE 16 SE 12 SE 16
WIND 20FT/LATE(MPH) SE 16 E 13 SE 16
MIXING HGT(FT-AGL/MSL)5640 5270
TRANSPORT WND (MPH) SE 17 SE 17
VENT RATE (KT-FT) 84600 79050
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-132000-
EASTERN INTERIOR-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 70 40
TEMP (24H TREND) 88 (+3) 70 (-2) 88
RH % (24H TREND) 60 (-5) 98 (+3) 61
WIND 20FT/EARLY(MPH) SE 14 SE 13 SE 16
WIND 20FT/LATE(MPH) SE 14 SE 14 SE 14
MIXING HGT(FT-AGL/MSL)6300 5810
TRANSPORT WND (MPH) SE 17 SE 17
VENT RATE (KT-FT) 94500 87150
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-132000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 70 40
TEMP (24H TREND) 83 (+4) 68 (-3) 83
RH % (24H TREND) 68 (-7) 99 (+1) 69
WIND 20FT/EARLY(MPH) SE 12 SE 10 SE 13
WIND 20FT/LATE(MPH) SE 13 SE 11 SE 13
MIXING HGT(FT-AGL/MSL)4600 4410
TRANSPORT WND (MPH) SE 20 SE 18
VENT RATE (KT-FT) 78200 70560
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-132000-
CENTRAL MOUNTAIN RANGE-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 40
TEMP (24H TREND) 87 (+6) 67 (-2) 87
RH % (24H TREND) 59 (-9) 98 (+4) 62
WIND 20FT/EARLY(MPH) SE 11 SE 8 SE 11
WIND 20FT/LATE(MPH) SE 12 SE 8 SE 11
MIXING HGT(FT-AGL/MSL)6940 6470
TRANSPORT WND (MPH) SE 16 SE 16
VENT RATE (KT-FT) 97160 90580
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-132000-
CAYEY MOUNTAIN RANGE-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 70 50
TEMP (24H TREND) 82 (+2) 69 (-1) 82
RH % (24H TREND) 68 (-4) 100 (+2) 71
WIND 20FT/EARLY(MPH) SE 11 SE 9 SE 12
WIND 20FT/LATE(MPH) SE 11 E 11 SE 12
MIXING HGT(FT-AGL/MSL)4900 4680
TRANSPORT WND (MPH) SE 17 SE 17
VENT RATE (KT-FT) 73500 70200
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-132000-
VIEQUES-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 20
TEMP (24H TREND) 88 (+2) 75 (-1) 88
RH % (24H TREND) 61 (-4) 92 (+3) 62
WIND 20FT/EARLY(MPH) SE 17 E 16 SE 17
WIND 20FT/LATE(MPH) SE 16 E 18 SE 16
MIXING HGT(FT-AGL/MSL)3530 3460
TRANSPORT WND (MPH) E 21 SE 23
VENT RATE (KT-FT) 63540 69200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-132000-
CULEBRA-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 10
TEMP (24H TREND) 89 (+2) 76 (-2) 89
RH % (24H TREND) 59 (-7) 90 (+3) 60
WIND 20FT/EARLY(MPH) E 17 E 17 SE 17
WIND 20FT/LATE(MPH) SE 17 E 18 SE 17
MIXING HGT(FT-AGL/MSL)3480 3590
TRANSPORT WND (MPH) SE 22 SE 23
VENT RATE (KT-FT) 66120 71800
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-132000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 40
TEMP (24H TREND) 91 (+2) 73 (-2) 91
RH % (24H TREND) 50 (-4) 93 (+7) 50
WIND 20FT/EARLY(MPH) E 19 E 16 E 19
WIND 20FT/LATE(MPH) SE 19 E 18 SE 19
MIXING HGT(FT-AGL/MSL)5260 5000
TRANSPORT WND (MPH) SE 21 SE 21
VENT RATE (KT-FT) 94680 90000
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-132000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 20
TEMP (24H TREND) 86 (+1) 75 (-3) 86
RH % (24H TREND) 64 (-3) 92 (+6) 65
WIND 20FT/EARLY(MPH) E 17 E 18 SE 18
WIND 20FT/LATE(MPH) SE 17 E 19 SE 17
MIXING HGT(FT-AGL/MSL)3480 3600
TRANSPORT WND (MPH) SE 22 SE 18
VENT RATE (KT-FT) 66120 57600
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-132000-
ST CROIX-
330 AM AST WED MAY 13 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 10
TEMP (24H TREND) 87 (+1) 74 (-3) 87
RH % (24H TREND) 64 (-3) 93 (+5) 64
WIND 20FT/EARLY(MPH) E 17 E 17 E 18
WIND 20FT/LATE(MPH) E 16 E 17 SE 17
MIXING HGT(FT-AGL/MSL)4930 4740
TRANSPORT WND (MPH) SE 21 SE 21
VENT RATE (KT-FT) 88740 85320
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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